JP2021148470A - Navigation information device and method for processing navigation information - Google Patents

Abstract

To provide a navigation information device and a method for processing navigation information that can desirably grasp situations around an own ship and can increase the visibility for results of detection by a sonar.SOLUTION: The navigation information device includes: a peripheral information generation unit for generating peripheral information around an own vehicle; a sonar information generation unit for generating sonar information showing a result of detection by a sonar; and a display control unit for increasing one of a peripheral screen showing the peripheral information and a sonar screen showing the sonar information when a predetermined condition is satisfied than when the condition is not satisfied, and controlling the other display region.SELECTED DRAWING: Figure 1

Description

The present invention relates to a navigation information device and a navigation information processing method.

Conventionally, a technique has been developed in which the detection result of a target such as a school of fish by a sonar mounted on a ship is superimposed on a nautical chart screen showing the surrounding situation of the ship. For example, a device that displays a history of the position of a target detected by sonar on a nautical chart screen is disclosed.

U.S. Patent Application Publication No. 2017/02421113

However, the sonar detection target area is, for example, an area with a radius of about 5 km centered on the own ship, and the display area of the detection result by the sonar is small with respect to the entire nautical chart, so it is difficult to confirm the detection result on the display screen. There's a problem.

On the other hand, there is a problem that the nautical chart of a wide area cannot be displayed on the screen in which the detection target area of the sonar is displayed in a large size, and the surrounding situation of the own ship cannot be sufficiently grasped.

The present invention has been made to solve the above-mentioned problems, and an object thereof is a voyage capable of better grasping the surrounding conditions of the own ship and improving the visibility of the detection result by the sonar. It is to provide an information device and a navigation information processing method.

The first aspect of the present invention relates to a navigation information device. The navigation information device according to this aspect includes a peripheral information generation unit that generates peripheral information around the ship, a sonar information generation unit that generates sonar information indicating the detection result by the sonar, and a predetermined condition when the predetermined conditions are satisfied. A display control unit that controls the display area of either the peripheral screen on which peripheral information is displayed or the sonar screen on which sonar information is displayed to be larger and the other display area to be smaller than before the condition is satisfied. , Equipped with.

According to the navigation information device according to this aspect, two screens related to a ship having different scales are included in one display screen and displayed in different sizes, so that each of the two screens is displayed in an appropriate size. On one display screen, it is possible to grasp both the peripheral information of a wide area around the ship and the target such as a school of fish existing in the area near the ship at once. Therefore, the surrounding condition of the own ship can be grasped well, and the visibility of the detection result by the sonar can be improved.

In the navigation information device according to this aspect, the peripheral information generation unit may be configured to generate nautical chart information or radar information as peripheral information.

In the navigation information device according to this aspect, the peripheral information generation unit may be configured to generate information in which any two or more of nautical chart information, radar information, and sonar information are superimposed as peripheral information.

According to this configuration, for example, it is possible to easily grasp the positional relationship between the nautical chart in a wide area around the ship, the target detected by the radar, and the target detected by the sonar.

In the navigation information device according to this aspect, the display control unit may be configured to make the display area of the sonar screen larger than the display area of the peripheral screen when the sonar echo superimposed on the peripheral screen is selected.

According to this configuration, detailed detection results by sonar can be confirmed on the display screen, for example, at a desired timing.

In the navigation information device according to this aspect, when the target is detected by the sonar, the display control unit enlarges the display area of the sonar screen as compared with before the target is detected, and displays the peripheral screen. Can be configured to be small.

According to this configuration, when a target exists in the vicinity of the own ship, the detailed detection result of the target by the sonar can be confirmed on the display screen.

In the navigation information device according to this aspect, when the distance between the own ship and the position specified on the peripheral screen is less than the threshold value, the display control unit displays the display area of the sonar screen as compared with before the distance becomes less than the threshold value. Can be configured to increase and reduce the display area of the peripheral screen.

According to this configuration, on the display screen, for example, detailed detection results by sonar in an area including a designated position can be confirmed.

In the navigation information device according to this aspect, when the distance between the other ship or the shore and the own ship is less than the threshold value, the display control unit makes the display area of the sonar screen smaller than before the distance is less than the threshold value. , May be configured to increase the display area of the peripheral screen.

According to this configuration, when the own ship approaches another ship or the shore, the peripheral screen can be displayed in a large size on the display screen, and the surrounding situation of the own ship can be better grasped.

In the navigation information device according to this aspect, when an operation for adding a mark to either the peripheral screen or the sonar screen is performed, the display control unit displays the mark on both the peripheral screen and the sonar screen. It may be configured to provide additional control.

According to this configuration, when adding a mark, it is not necessary to perform an operation for adding the mark on both the peripheral screen and the sonar screen, so that the operability can be improved. In addition, the positions of the marks on the peripheral screen and the sonar screen can be accurately aligned.

In the navigation information device according to this aspect, the display control unit may be configured to add a mark at a position corresponding to the detection target area of the sonar on the peripheral screen when a predetermined operation is performed on the displayed sonar screen. ..

According to this configuration, for example, when a target is detected by sonar, the detection target area in which the target exists can be registered on the peripheral screen by a simple operation.

In the navigation information device according to this aspect, the display control unit may be configured to control the display of information about the selected mark when the operation of selecting the mark displayed on the peripheral screen or the sonar screen is performed. ..

According to this configuration, the latitude / longitude and the place name of the position indicated by the mark added to the display screen can be easily confirmed.

In the navigation information device according to this aspect, when the predetermined condition is satisfied, the display control unit gradually displays the display area of either the peripheral screen or the sonar screen over a certain period of time as compared with before the predetermined condition is satisfied. It may be configured to increase and gradually decrease the other display area over a period of time.

In the navigation information device according to this aspect, the display control unit may be configured to generate an alarm display or an alarm sound when a predetermined condition is satisfied.

According to this configuration, the user can easily recognize that the predetermined condition is satisfied.

A second aspect of the present invention relates to a nautical information processing method. The voyage information processing method according to this aspect generates peripheral information around the ship, generates sonar information indicating the detection result by the sonar, and when the predetermined condition is satisfied, the periphery is compared with that before the predetermined condition is satisfied. Enlarge the display area of either the peripheral screen on which information is displayed or the sonar screen on which sonar information is displayed, and decrease the display area of the other.

According to the navigation information processing method according to this aspect, the same effect as that of the first aspect is achieved.

According to the present invention, it is possible to satisfactorily grasp the surrounding conditions of the own ship and improve the visibility of the detection result by the sonar.

It is a figure which shows the structure of the navigation information system which concerns on embodiment of this invention. It is a figure which shows an example of the display screen displayed by the navigation information device which concerns on embodiment of this invention. It is a figure which shows an example of the display screen displayed by the navigation information device which concerns on embodiment of this invention. It is a figure which shows an example of the display screen displayed by the navigation information device which concerns on embodiment of this invention. It is a figure which shows an example of the display screen on which the mark is superposed, which is displayed by the navigation information device which concerns on embodiment of this invention. It is a figure which shows an example of the display screen on which the mark is superposed, which is displayed by the navigation information device which concerns on embodiment of this invention. It is a figure which shows an example of the display screen which contains the information about a mark, which is displayed by the navigation information device which concerns on embodiment of this invention. It is a flowchart which shows the flow of operation for displaying the display screen by the navigation information device which concerns on embodiment of this invention. It is a flowchart which shows the flow of operation when the navigation information device which concerns on embodiment of this invention switches a display pattern of a display screen.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals, and the description thereof will not be repeated. In addition, at least a part of the embodiments described below may be arbitrarily combined.

<Configuration and basic operation>
[overall structure]
FIG. 1 is a diagram showing a configuration of a navigation information system according to an embodiment of the present invention.

With reference to FIG. 1, the navigation information system 201 includes a navigation information device 101, a monitor 102, a radar 103, a sonar 104, and an external device 105. The navigation information system 201 is mounted on the ship. Hereinafter, the ship equipped with the navigation information system 201 is also referred to as "own ship".

The radar 103 transmits radio waves, receives reflected waves from the targets of the transmitted radio waves, and detects targets of other ships and the like existing around the own ship based on the received reflected waves. Then, the radar 103 transmits radar detection information indicating the latest detection result to the navigation information device 101 periodically or irregularly. The radar detection information indicates, for example, the detection target area R1 of the radar 103, the reception intensity of the reflected wave by the radar 103, the position of the target detected by the radar 103, and the like. The detection target area R1 is, for example, an area having a radius of about 100 km centered on the own ship.

The sonar 104 transmits ultrasonic waves, receives reflected waves from the targets of the transmitted ultrasonic waves, and detects targets such as a school of fish existing around the ship based on the received reflected waves. Then, the sonar 104 transmits the sonar detection information indicating the latest detection result to the navigation information device 101 periodically or irregularly. The sonar detection information indicates, for example, the detection target region R2 of the sonar 104, the reception intensity of the reflected wave by the sonar 104, the position of the target detected by the sonar 104, and the like. The detection target area R2 is, for example, an area having a radius of about 5 km centered on the own ship.

The navigation information device 101 controls to display the peripheral screen G1 showing the peripheral condition of the own ship and the sonar screen G2 showing the detection result by the sonar 104 on the monitor 102. More specifically, the navigation information device 101 controls to display the display screen GA including both the peripheral screen G1 and the sonar screen G2 on the monitor 102.

The navigation information device 101 may be configured to include a monitor 102.

[Navigation information device]
(Display of peripheral screen G1 and sonar screen G2)
The navigation information device 101 includes a control unit 10, an input reception unit 14, a storage unit 15, and a mark setting unit 16. The control unit 10 includes a sonar information generation unit 11, a peripheral information generation unit 12, and a display control unit 13. The storage unit 15 is, for example, a non-volatile memory.

The sonar information generation unit 11 receives the sonar detection information transmitted from the sonar 104, and based on the latest received sonar detection information, displays the sonar screen G2 including the sonar echo S indicating the detection result by the sonar 104. Generate sonar information. Then, the sonar information generation unit 11 outputs the generated sonar information to the peripheral information generation unit 12 and the display control unit 13.

The peripheral information generation unit 12 reads, for example, chart information related to the nautical chart from the external device 105, and periodically or irregularly generates nautical chart information for displaying the nautical chart screen based on the read chart information. The chart information includes, for example, terrain, place names, symbols, etc. that serve as landmarks when navigating.

The external device 105 may be configured to update the chart information periodically or irregularly. In this case, the chart information may include time-series changes such as tidal current and water quality.

Further, the chart information may be stored in the storage unit 15 in advance. In this case, the peripheral information generation unit 12 reads the chart information from the storage unit 15. Further, in this case, the navigation information system 201 does not have to include the external device 105.

Further, the peripheral information generation unit 12 receives the radar detection information transmitted from the radar 103, and superimposes the radar echo L or the like indicating the detection result by the radar 103 on the sea map screen based on the received latest radar detection information. Generate radar information for.

The peripheral information generation unit 12 receives the sonar information output from the sonar information generation unit 11. Then, the peripheral information generation unit 12 generates peripheral information for displaying the peripheral screen G1, which is a screen in which the radar echo L and the sonar echo S are superimposed on the nautical chart screen, for example, based on the nautical chart information, the radar information, and the sonar information. do. Then, the peripheral information generation unit 12 outputs the generated peripheral information to the display control unit 13.

The display control unit 13 monitors the display screen GA including both the peripheral screen G1 and the sonar screen G2 based on the peripheral information output from the peripheral information generation unit 12 and the sonar information output from the sonar information generation unit 11. Control to display on 102 is performed. More specifically, the display control unit 13 generates display screen information for displaying the display screen GA based on the peripheral information and sonar information, and outputs the generated display screen information to the monitor 102 to display the display. Control is performed to display the screen GA on the monitor 102.

The display control unit 13 generates display screen information periodically or irregularly, for example, based on the latest peripheral information received from the peripheral information generation unit 12 and the latest sonar information received from the sonar information generation unit 11. The display screen GA displayed on the monitor 102 is updated.

FIG. 2 is a diagram showing an example of a display screen displayed by the navigation information device according to the embodiment of the present invention.

With reference to FIG. 2, the display control unit 13 makes the display area of either the peripheral screen G1 or the sonar screen G2 larger than the other display area on the display screen GA. That is, the display control unit 15 sets either one of the peripheral screen G1 and the sonar screen G2 as the main screen and the other as the sub screen. The main screen and the sub screen have different areas from each other. For example, the area of the sub screen is less than half the area of the main screen.

When the peripheral screen G1 is set as the main screen and the sonar screen G2 is set as the sub screen, the display control unit 13 sets the peripheral screen G2 as the main screen, for example, as shown in FIG. The display screen GA is displayed so as to be superimposed on a part of G1.

As described above, the display pattern of the display screen GA when the peripheral screen G1 is set as the main screen and the sonar screen G2 is set as the sub screen is referred to as "pattern 1".

On the peripheral screen G1, for example, the symbol P indicating the position of the own ship, the circle indicating the detection target area R1 of the radar 103, the radar echo L indicating the target of another ship detected by the radar 103, and the sonar 104 detect it. Sonar echo S or the like indicating a target such as a school of fish is superimposed on the sea map screen. The sonar echo S is color-coded according to, for example, the level of the received intensity of the reflected wave in the sonar 104.

The sonar screen G2 includes, for example, a symbol P indicating the position of the own ship, a circle indicating the detection target area R2 of the sonar 104, and a sonar echo S.

Further, when the predetermined condition is satisfied, the display control unit 13 switches the magnitude relationship of each display area of the peripheral screen G1 and the sonar screen G2 on the display screen GA. That is, when the predetermined condition is satisfied, the display control unit 15 switches the settings of the main screen and the sub screen.

3 and 4 are diagrams showing an example of a display screen displayed by the navigation information device according to the embodiment of the present invention.

With reference to FIGS. 2, 3 and 4, for example, as shown in FIG. 2, a predetermined condition is satisfied in a situation where the peripheral screen G1 is set as the main screen and the sonar screen G2 is set as the sub screen. Suppose. In this case, the display control unit 13 sets the sonar screen G2 as the main screen and the peripheral screen G1 as the sub screen.

Then, as shown in FIG. 3 or 4, the display control unit 13 makes the display area of the sonar screen G2 larger than the display area of the peripheral screen G1 on the display screen GA. As described above, the display pattern of the display screen GA when the sonar screen G2 is set as the main screen and the peripheral screen G1 is set as the sub screen is referred to as "pattern 2".

When changing the display pattern from "Pattern 1" shown in FIG. 2 to "Pattern 2" shown in FIG. 4, the sizes of the main screen and the sub screen may be gradually changed over a certain period of time.

Further, when a predetermined condition is satisfied, an alarm display or an alarm sound may be generated.

The display pattern of the display screen GA first displayed on the monitor 102 may be any of the display patterns of pattern 1 and pattern 2.

The peripheral screen G1 may not include the sonar echo S. In this case, the sonar information generation unit 11 outputs the sonar information to the display control unit 13, but does not output the sonar information to the peripheral information generation unit 12. Then, the peripheral information generation unit 12 generates peripheral information for displaying the peripheral screen G1, which is a screen in which the radar echo L is superimposed on the nautical chart screen, based on the nautical chart information and the radar information.

Further, the peripheral screen G1 may not include the radar echo L. In this case, the navigation information system 201 does not have to include the radar 103.

Further, the peripheral screen G1 may correspond to a nautical chart screen that does not include either the radar echo L or the sonar echo S. In this case, the navigation information system 201 does not have to include the radar 103.

Further, the peripheral screen G1 may be only the radar echo L that does not include either the nautical chart screen or the sonar echo S. In this case, the navigation information system 201 does not have to include the external device 105.

(Add mark)
(A) Example 1
With reference to FIG. 1 again, when the user performs an operation for adding the mark M as a mark when the ship is navigating to the display screen GA by using a mouse or the like (not shown). , The operation information indicating the operation content is output to the mark setting unit 16.

When the mark setting unit 16 receives the operation information output from the input receiving unit 14, the mark setting unit 16 displays the mark information on the display screen GA based on the operation information and the chart information stored in the external device 105. Is stored in the storage unit 15. The mark information includes, for example, the latitude / longitude, place name, tidal current, water quality, etc. of the position where the mark M is added.

When an operation for adding the mark M to either the peripheral screen G1 or the sonar screen G2 is performed, the display control unit 13 adds the mark M on both the peripheral screen G1 and the sonar screen G2. Take control.

More specifically, when generating the peripheral information, the peripheral information generation unit 12 confirms whether or not the mark information indicating the latitude and longitude of the position included in the detection target area R1 of the radar 103 is stored in the storage unit 15. do.

Then, when one or a plurality of mark information indicating the latitude and longitude of the position included in the detection target area R1 is stored in the storage unit 15, the peripheral information generation unit 12 corresponds to each of the one or a plurality of mark information. Generates peripheral information for displaying the peripheral screen G1 on which one or a plurality of marks M are superimposed on the nautical chart screen. Then, the peripheral information generation unit 12 outputs the generated peripheral information to the display control unit 15.

When the sonar information generation unit 11 generates sonar information, it confirms whether or not the mark information indicating the latitude and longitude of the position included in the detection target area R2 of the sonar 104 is stored in the storage unit 15.

Then, when one or a plurality of mark information indicating the latitude and longitude of the position included in the detection target area R2 is stored in the storage unit 15, the sonar information generation unit 11 corresponds to each of the one or a plurality of mark information. Generates sonar information for displaying the sonar screen G2 on which one or more marks M are superimposed on the sonar screen G2. Then, the sonar information generation unit 11 outputs the generated sonar information to the display control unit 13.

As described above, the display control unit 13 monitors the display screen GA including both the peripheral screen G1 and the sonar screen G2 based on the peripheral information from the peripheral information generation unit 12 and the sonar information from the sonar information generation unit 11. Control to display on 102 is performed.

FIG. 5 is a diagram showing an example of a display screen on which marks are superimposed, which is displayed by the navigation information device according to the embodiment of the present invention.

With reference to FIG. 5, for example, it is assumed that the user performs an operation of adding the mark M included in the detection target area R2 of the sonar 104 on the peripheral screen G1. In this case, the display control unit 13 displays the display screen GA in which the mark M is added to both the peripheral screen G1 and the sonar screen G2.

(B) Example 2
With reference to FIG. 1 again, when a predetermined operation is performed on the displayed sonar screen G2, the display control unit 15 puts a mark M at a position corresponding to the detection target area R2 of the sonar 104 on the peripheral screen G1. to add. Specifically, it is assumed that the user has performed an operation for saving the displayed sonar screen G2. In this case, the display control unit 15 adds the mark M to the peripheral screen G1 at a position corresponding to the detection target area R2 included in the sonar screen G2.

FIG. 6 is a diagram showing an example of a display screen on which marks are superimposed, which is displayed by the navigation information device according to the embodiment of the present invention.

With reference to FIGS. 1 and 6, it is assumed that the sonar screen G2 includes a save icon Ic for instructing the save of the sonar screen G2. Then, it is assumed that the user moves the cursor C to the save icon Ic on the displayed sonar screen G2 and instructs the save of the sonar screen G2.

In this case, the input receiving unit 14 outputs the operation information indicating that the sonar screen G2 is instructed to be saved to the mark setting unit 18.

When the mark setting unit 16 receives the operation information indicating that the sonar screen G2 is to be saved from the input reception unit 14, the mark setting unit 16 reads, for example, the chart information stored in the external device 105 and is the current detection target of the sonar 104. Mark information including latitude / longitude, place name, tidal current, water quality, etc. of the position corresponding to the area R2 is stored in the storage unit 15.

The peripheral information generation unit 12 generates peripheral information based on the mark information stored in the storage unit 15, and outputs the generated peripheral information to the display control unit 13.

The display control unit 13 receives the peripheral information from the peripheral information generation unit 12, and displays the display screen GA including the peripheral screen G1 on which the mark M is superimposed on the nautical chart screen based on the peripheral information.

(Display of information about the mark)
Further, the display control unit 13 controls to display information about the selected mark M when the operation of selecting the mark M displayed on the peripheral screen G1 or the sonar screen G2 is performed.

FIG. 7 is a diagram showing an example of a display screen including information on a mark displayed by the navigation information device according to the embodiment of the present invention.

With reference to FIGS. 1 and 7, specifically, it is assumed that the user moves the cursor C to the mark M displayed on the display screen GA and performs an operation to select the mark M. In this case, the input receiving unit 14 outputs the operation information indicating the operation content by the user to the display control unit 13.

When the display control unit 13 receives the operation information indicating the mark M selected by the user from the input reception unit 14, the display control unit 13 reads the mark information corresponding to the mark M from the storage unit 15, and based on the read mark information, the display control unit 13 reads the mark information. The display screen GA including the content of the mark information is displayed.

[Switching the display pattern of the display screen]
(Example 1)
With reference to FIGS. 1 to 3 again, as described above, the display control unit 13 switches the display pattern of the display screen GA when the predetermined condition is satisfied. For example, when the sonar 104 detects a target such as a school of fish, the display control unit 13 makes the display area of the sonar screen G2 larger than the display area of the peripheral screen G1 on the display screen GA.

Specifically, the sonar information generation unit 11 indicates that a target has been detected in the detection target region R2 when the reception intensity of the reflected wave indicated by the sonar detection information received from the sonar 104 is equal to or higher than the threshold value. Generate detection information. Then, the sonar information generation unit 11 further outputs the generated target detection information to the display control unit 13 in addition to the sonar information for displaying the sonar screen G2.

When the display control unit 13 receives the target detection information output from the sonar information generation unit 11, it determines that the first predetermined condition is satisfied. Then, when the display screen GA of the pattern 1 as shown in FIG. 2 is displayed, the display control unit 13 switches the display pattern of the display screen GA to the pattern 2 as shown in FIG. 3 or FIG.

(Example 2)
For example, when the distance between the ship and the position specified on the nautical chart screen is less than the threshold value Th1, the display control unit 13 sets the display area of the sonar screen G2 to be larger than the display area of the peripheral screen G1 on the display screen GA. Enlarge. The position specified on the display screen GA is, for example, the position where the mark M is added by the user.

Specifically, when the sonar information generation unit 11 generates sonar information, whether or not the mark information regarding the mark M included in the range where the distance from the own ship is less than the threshold Th1 is stored in the storage unit 15. Check.

Then, when the sonar information generation unit 11 stores the mark information relating to the mark M included in the range where the distance from the own ship is less than the threshold Th1 in the storage unit 15, for example, the mark M is included in the range. Generates mark detection information indicating. Then, the sonar information generation unit 11 further outputs the generated mark detection information to the display control unit 13 in addition to the sonar information.

When the display control unit 13 receives the mark detection information output from the sonar information generation unit 11, it determines that the first predetermined condition is satisfied. Then, when the display screen GA of the pattern 1 is displayed, the display control unit 13 switches the display pattern of the display screen GA to the pattern 2.

(Example 3)
For example, when the sonar echo S displayed on the peripheral screen G1 is selected on the display screen GA, the display control unit 13 makes the display area of the sonar screen G2 larger than the display area of the peripheral screen G1.

Specifically, it is assumed that the user moves the cursor C to the sonar echo S included in the peripheral screen G1 and selects the sonar echo S in the situation where the display screen GA of the pattern 1 is displayed. In this case, the input receiving unit 14 outputs the operation information indicating the operation content by the user to the display control unit 13.

When the display control unit 13 receives the operation information indicating that the sonar echo S included in the peripheral screen G1 is selected from the input reception unit 14, the display control unit 13 determines that the first predetermined condition is satisfied, and displays the display pattern of the display screen GA. Switch from pattern 1 to pattern 2.

(Example 4)
For example, when the distance between the other ship or the shore and the own ship is less than the threshold value Th2, the display control unit 13 makes the display area of the sonar screen G2 smaller than the display area of the peripheral screen G1 on the display screen GA.

Specifically, when the peripheral information generation unit 12 detects a target on another ship or shore by the radar 103, specifically, the reception intensity of the reflected wave indicated by the radar detection information received from the radar 103 is a threshold value. In the above case, the target detection information indicating that the target has been detected in the detection target area R1 is generated. Then, the peripheral information generation unit 12 outputs the generated target detection information to the display control unit 13.

When the display control unit 13 receives the target detection information output from the peripheral information generation unit 12, it determines that the second predetermined condition is satisfied. Then, when the display screen GA of the pattern 2 is displayed, the display control unit 13 switches the display pattern of the display screen GA to the pattern 1.

<Flow of operation>
The navigation information device 101 includes a computer including a memory, and an arithmetic processing unit such as a CPU in the computer reads a program including a part or all of each step of the following flowchart from the memory and executes the program. The program of the navigation information device 101 can be installed from the outside. Further, the program of the navigation information device 101 is distributed in a state of being stored in the recording medium.

[Operation until the display screen is displayed]
FIG. 8 is a flowchart showing an operation flow for displaying a display screen by the navigation information device according to the embodiment of the present invention.

With reference to FIG. 8, first, the sonar information generation unit 11 receives the sonar detection information transmitted from the sonar 104 and generates sonar information based on the sonar detection information. Then, the sonar information generation unit 11 outputs the generated sonar information to the peripheral information generation unit 12 and the display control unit 13 (step S11).

Next, the peripheral information generation unit 12 receives the radar detection information transmitted from the radar 103, and generates radar information based on the radar detection information (step S12).

Next, the peripheral information generation unit 12 generates nautical chart information based on the chart information stored in the storage unit 15 (step S13).

Next, the peripheral information generation unit 12 generates peripheral information for displaying the peripheral screen G1 based on the sonar information, radar information, and nautical chart information. Then, the peripheral information generation unit 12 outputs the generated peripheral information to the display control unit 13 (step S14).

Next, the display control unit 13 is for displaying the display screen GA including the peripheral screen G1 and the sonar screen G2 based on the peripheral information from the peripheral information generation unit 12 and the sonar information from the sonar information generation unit 11. Generate display screen information. Then, the display control unit 13 controls to display the display screen GA on the monitor 102 by transmitting the generated display screen information to the monitor 102 (step S15).

The sonar information generation unit 11 generates sonar information (step S11), the peripheral information generation unit 12 generates radar information (step S12), and the peripheral information generation unit 12 generates nautical chart information (step S13). It may be done in the order of. Further, these operations from step S11 to step S15 are performed periodically or irregularly.

Further, when the sonar information generation unit 11 generates the sonar information (step S11), when the mark information related to the mark M included in the detection target area R2 of the sonar 104 is stored in the storage unit 15, the sonar detection information and the sonar information generation unit 11 Sonar information is generated based on the mark information.

Further, when the peripheral information generation unit 12 generates the peripheral information (step S14), when the mark information related to the mark M included in the detection target area R1 of the radar 103 is stored in the storage unit 15, the sonar information and the radar Peripheral information is generated based on information, sea map information, and the mark information.

[Display screen display pattern switching operation]
FIG. 9 is a flowchart showing an operation flow when the navigation information device according to the embodiment of the present invention switches the display pattern of the display screen.

With reference to FIG. 9, first, the display control unit 13 controls to display the display screen GA of the pattern 1, for example (step S21).

Next, the display control unit 13 confirms whether or not the first predetermined condition is satisfied. Specifically, the display control unit 13 is an input reception unit for target detection information from the sonar information generation unit 11, mark detection information from the sonar information generation unit 11, and sonar echo S selected on the peripheral screen G1. It is confirmed whether or not at least one of the operation information from 14 has been received (step S22).

Next, the display control unit 13 determines that the first predetermined condition is satisfied when at least one of the target detection information, the mark detection information, and the operation information is received (in step S22). "YES"). Then, the display control unit 13 switches the display pattern of the display screen GA from the pattern 1 to the pattern 2. That is, the display control unit 13 controls to display the display screen GA of the pattern 2 (step S23).

Next, the display control unit 15 confirms whether or not the second predetermined condition is satisfied. Specifically, the display control unit 13 confirms whether or not the target detection information from the peripheral information generation unit 12 has been received (step S24).

Next, when the display control unit 13 receives the target detection information, it determines that the second predetermined condition is satisfied (“YES” in step S24), and changes the display pattern of the display screen GA from pattern 1 to pattern 2. Switch to. That is, the display control unit 13 controls to display the display screen GA of the pattern 1 (step S21).

On the other hand, in the situation where the display control unit 13 is displaying the display screen GA of the pattern 1, the sonar echo S is selected on the target detection information and the mark detection information from the sonar information generation unit 11 and the peripheral screen G1. Until at least one of the operation information of is received, it is determined that the first predetermined condition is not satisfied (“NO” in step S22), and the display of the display screen GA of the pattern 1 is continued (step). S21).

Further, the display control unit 13 determines that the second predetermined condition is not satisfied until the target detection information from the peripheral information generation unit 12 is received in the situation where the display screen GA of the pattern 2 is displayed. (“NO” in step S24), the display of the display screen GA of pattern 2 is continued (step S23).

It should be considered that the above embodiments are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

10 Control unit 11 Sonar information generation unit 12 Peripheral information generation unit 13 Display control unit 14 Input reception unit 15 Storage unit 16 Mark setting unit 101 Navigation information device 102 Monitor 103 Radar 104 Sonar 105 External device 201 Navigation information system

Claims (13)

Peripheral information generator that generates peripheral information around the ship,
A sonar information generator that generates sonar information indicating the detection result by sonar,
When the predetermined condition is satisfied, the display area of either the peripheral screen on which the peripheral information is displayed or the sonar screen on which the sonar information is displayed is enlarged as compared with before the predetermined condition is satisfied, and the other is enlarged. A navigation information device including a display control unit that controls to reduce the display area. The navigation information device according to claim 1, wherein the peripheral information generation unit generates nautical chart information or radar information as the peripheral information. The navigation information device according to claim 1, wherein the peripheral information generation unit generates information obtained by superimposing any two or more of nautical chart information, radar information, and sonar information as the peripheral information. When the sonar echo superimposed on the peripheral screen is selected, the display control unit enlarges the display area of the sonar screen as compared with before the sonar echo is selected, and increases the display area of the peripheral screen. The navigation information device according to claim 3, wherein the navigation information device is controlled to be made smaller. When a target is detected by the sonar, the display control unit controls to enlarge the display area of the sonar screen and reduce the display area of the peripheral screen as compared with before the target is detected. The navigation information device according to any one of claims 1 to 4. When the distance between the own ship and the position specified on the peripheral screen is less than the threshold value, the display control unit enlarges the display area of the sonar screen as compared with before the distance becomes less than the threshold value. The navigation information device according to any one of claims 1 to 5, which controls to reduce the display area of the peripheral screen. When the distance between the other ship or the shore and the own ship is less than the threshold value, the display control unit reduces the display area of the sonar screen as compared with before the threshold value is less than the threshold value, and reduces the display area of the sonar screen to the peripheral screen. The navigation information device according to any one of claims 1 to 6, which controls to enlarge the display area. When an operation for adding a mark to either the peripheral screen or the sonar screen is performed, the display control unit controls to add the mark on both the peripheral screen and the sonar screen. The navigation information device according to any one of claims 1 to 7. The display control unit controls to add a mark to a position corresponding to a detection target area of the sonar on the peripheral screen when a predetermined operation is performed on the displayed sonar screen, according to claim 1. Item 8. The navigation information device according to any one of items 8. The display control unit controls to display information about the selected mark when an operation of selecting a mark displayed on the peripheral screen or the sonar screen is performed. The navigation information device according to any one of the following items. When the predetermined condition is satisfied, the display control unit gradually enlarges the display area of either the peripheral screen or the sonar screen over a certain period of time as compared with before the predetermined condition is satisfied, and the other. The navigation information device according to any one of claims 1 to 10, wherein the display area of the above is gradually reduced over a certain period of time. The navigation information device according to any one of claims 1 to 11, wherein the display control unit controls to display an alarm or generate an alarm sound when the predetermined condition is satisfied. Generates peripheral information around your ship and
Generates sonar information showing the detection result by sonar,
When the predetermined condition is satisfied, the display area of either the peripheral screen on which the peripheral information is displayed or the sonar screen on which the sonar information is displayed is enlarged as compared with before the predetermined condition is satisfied, and the other is enlarged. A nautical information processing method that controls the size of the display area.

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